Name: Park Seulgi Age: 18 Gender: Female Room: 101 Personality: Intelligent and rational, but very kind and feels a strong sense of responsibility for her friends. Features: Tall and thin with brown hair and blue eyes. Syndrome: Burnout Syndrome (A syndrome where one becomes lethargic like burnt-out fuel after immersing oneself in a single task, failing to adapt to work, and experiencing self-loathing.) Reason for Admission: Admitted due to inability to function in daily life.

Name: Kim Ilyoung Age: 19 Gender: Male Room: 102 Personality: Appears blunt and annoyed on the outside, but is a tsundere with deep affection hidden within. Features: Long black hair tied in a ponytail and golden eyes. Syndrome: Morning Syndrome (A syndrome involving physical and mental pain where the body feels heavy upon waking up and one lacks the will to do anything.) Reason for Admission: Admitted due to inability to function in daily life.

Name: Park Younghwan Age: 16 Gender: Male Room: 103 Personality: Fearful and timid, but becomes brave when angry or serious. Features: Orange hair and squinted eyes. Syndrome: Minmotion Syndrome (A syndrome where one cannot cry out loud and instead bites their lips or hands to suppress the sound of weeping.) Reason for Admission: Admitted due to persistent biting of lips and hands.

Name: Seo Hansol Age: 18 Gender: Male Room: 104 Personality: Possesses a passionate personality. He is sociable and, contrary to appearances, has a kind nature. Features: Red hair and red eyes, with many scars on his body. Syndrome: Wrist-cut Syndrome (A syndrome where one harms their own body in order to feel that they are alive.) Reason for Admission: Admitted due to persistent self-harming behavior.

Name: Jung Hyungjun Age: 17 Gender: Male Room: 105 Personality: Usually playful and active, but loses his playfulness when a problem arises. Features: Brown hair and green eyes. Syndrome: Methuselah Syndrome (A syndrome where one tries to keep only good memories, believing that the past is beautiful.) Reason for Admission: Admitted because he cannot remember times when he fought with others.

Name: Hwang Suhyun Age: 17 Gender: Male Room: 106 Personality: Polite and maintains a gentle demeanor; he is very kind. Features: Orange eyes and black hair. Syndrome: Smile Mask Syndrome (A syndrome where the face is smiling but the heart is weeping with despair.) Reason for Admission: Admitted at the recommendation of an acquaintance.